MIURA P400
Image Copywrite
© Car magazine August 1966 / Philippe Muratori
The P400 was the first model of the Miura, but it was
produced well before the car was properly developed. These cars suffered from
structural problems. Today, when not modified, the P400 can be recognised by
the black trim around the front lights, the windshield and the side windows.
They appeared to be lower than the S and the SV.
MIURA P400 SPECIFICATIONS
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DETAILS |
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Early type wood steering wheel |
Early type leather steering wheel |
Later type steering wheel with early grab handle |
Later type steering wheel with later grab handle |
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Early type window handle
and door skin |
Later type window handle and door skin |
Early type roof mounted switches |
Rear lights and logo |
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Early type spinner |
2nd type spinner |
Early type Bertone badge |
Eye lashes and black trim |
Black trim around the windshield |
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ENGINE |
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Type/location |
12 V (60 degrees) / rear transversaly mounted
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Material |
light alloy (block and heads) |
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Bore x stroke |
82 x 62 mm |
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Displacement |
3929 cm3 |
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Bore & stroke |
82 x 62 mm |
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Compression ratio |
9.5:1 |
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Max. power |
350 hp DIN at 7000 rpm (claimed) 320 hp
DIN (real) |
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Specific power |
88 hp DIN / litre |
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Max. torque |
38,5 mkg at 5000 rpm |
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Valve gear |
2 overhead camshafts per cylinder bank chain
driven |
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Valves |
2 per cylinder in V of 70 degrees. 48
mm dia. (inlet) 38 mm dia. (exhaust) |
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Crankshaft |
no of main bearings 7 |
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Cooling system |
water type cross-flow front radiator with 2
electric fans |
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Lubrification |
pressure fed, wet sump common with
transmission and differential |
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Fuel system |
4 downdraught triple choke Weber 40 IDA 30
with 1 electric Bendix fuel pump (100 octane) |
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Ignition |
Bosch 250P plugs with 2 Bosch coils and 2
Marelli S 85 C distributors, 12 V |
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Firing order |
1-7-4-10-2-8-6-12-3-9-5-11 |
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Alternator |
420 Watt |
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TRANSMISSION |
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Clutch |
Single dry-plate, 245 mm dia, hydraulic
operation |
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Gearbox |
rear driven, all synchromesh Porsche patent,
5 speed + reverse manual |
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1st : 2.520:1 |
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2nd : 1.735:1 |
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3rd : 1.225:1 |
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4th : 1.000:1 |
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5th : 0.815:1 |
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Reverse : 2.765:1 |
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Differential |
ZF-type, final drive ratio : 4.09:1 (11/45) |
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CHASSIS |
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Construction |
Semi-monocoque welded steel box center
section with tubular extensions |
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Body |
Bertone berlinetta semi-monocoque steel
construction with aluminium front and rear sections |
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Suspension |
independent, upper and lower traopezoidal
A-arms, helicoidal coil springs, telescopic hydraulic shock absorbers, anti
roll torsion bars |
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Brakes |
Girling non-vented disc brakes on 4 wheels,
hydraulic dual circuit, 300 mm front disc and 306 mm rear disc, mechanical
handbrake on rear wheels |
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Steering |
Rack and pinion unassisted, 11,2 m turning
circle, 3.5 turns at steering wheel, 14 in steering dia. |
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Wheels |
Campagnolo cast magnesium alloy, 7 in x 15
in |
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Tyres |
Pirelli Cinturato HS 205-15 |
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DIMENSIONS / CAPACITIES |
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Length |
4360 mm |
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Width |
1760 mm |
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Height |
1055 mm |
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Whellbase |
2504 mm |
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Front track |
1412 mm |
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Rear track |
1412 mm |
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Front overhang |
985 mm |
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Rear overhang |
900 mm |
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Ground clearance |
125 mm |
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Dry weight |
1075 kg |
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Maximum weight |
1300 kg |
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Fuel tank |
90 l |
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Oil |
11,5 l |
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Cooling system |
18 l |
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Trunk capacity |
140 l |
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PERFORMANCE |
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Maximum speed |
280 Km/h |
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0 - 100 Km/h |
6.7 sec |
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Standing Km |
24.8 sec |
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MIURA P400 PRODUCTION NUMBERS |
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1966 |
1967 |
1968 |
1969 |
1970 |
1971 |
1972 |
1973 |
TOTAL |
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2 |
108 |
153 |
11 |
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274 |
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MIURA P400 CHASSIS NUMBERS REBUILT DURING PRODUCTION
YEARS |
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3006 (no 20 and 531) P400 rebuilt to P400S (1970) |
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3054 (no 38 and 710) P400 rebuilt to P400SV (1972) |
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3072 (no 43 and 272) P400 rebuilt to P400 (1968) |
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3174 (no 88 and 165) P400 rebuilt to P400 (1968) |
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3312 (no 126 and 479) P400 rebuilt to P400S (1970) |
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3408 (no 157, 480 and 611) P400 rebuilt to P400S
(1970) and to P400SV (1971) |
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3673 / 5098 (no 242 and 751) P400 rebuilt to P400SV (1973) |
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3676 (no 243 and 526) P400 rebuilt to P400S (1970) |
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3745 (no 266) P400 rebuilt to P400SV (not on production line) (1973) |
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3766 (no 273 and 474) P400 rebuilt to P400S (1970) |
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3850 (no 308 and 514) P400 rebuilt to P400S (1970) |
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